Yeah probably true, I didn't post a source because I thought it was common knowledge which in retrospect I'm not sure why I thought that.
And I'm glad you enjoyed the links, when I first started looking into the raw NOAA data and PRISM[1] data it took a bit to figure out what to do with it. But I've found the GDAL library helpful for parsing various weather data formats, and there are a lot of them[2].
[1]: https://prism.oregonstate.edu/
[2]: https://gdal.org/